jessemartinez1
19.08.2019 •
Mathematics
If lk =mk. lk = 7x-10. x + 3. min =9x-11 and kj = 28 find lj
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Ответ:
LJ = 46
Step-by-step explanation:
Suppose J,K,L,M,N are on same line
And
MK = MN + (-KN)
MK= MN-KN
MK= 9x-11 - (x+3)
MK=9x-11-x-3
MK= 8x-14
Now we have given that LK=MK
and LK= 7x-10
So,
LK=MK
7x-10 = 8x-14
Combine the like terms:
7x-8x = -14+10
-x = -4
x=4
LJ = MK + KJ
MK=LK = 7x-10 = 7(4)-10
=28-10
= 18
LJ=18+28
LJ=46
Ответ: